Latch.



0. M. AHLBERG.

LATCH.

APPLICATION FILED JUNE 22, 1912.

1,1 15,762, Patented Nov. 3, 1914.

UNITED sTATEs rATE rouFroE;

CHARLES M. AHLBERG, or sr. PAUL, Mmnnsom;

LATCH.

To all whom it may concern:

Beit known that I, CHARLES M. 'AHLBERG,

I j a citizen of the United States, residing at St.

Paul, inthe county "of Ramseyand State of Minnesota, have invented anewand useful Improvement in Latches, of which the following is a.specification.

' The object of this invention is to provide a latch for doors, gatesand other lunged devices wh ch is simple and inexpensive n constructionand effective in use. I a k Afurther object is to so construct thelatchfthat it will lift the free end ofithe door into positiontoregister with the door" jamb or casing should the hingesofthe doorthrough weakness fail to holdthe door in registering position, I

In the accompanying drawing forming part of this specification, Figure 1is aper spective of a door. hinged in a door frame illust'rating'myinvention applied thereto,

and Fig. 2 isa side elevation showing the invention. r

This invention consists of twocooperating elements, one a latch barA andthe other a. latch spring or latch bar engaging member B which'isadapted to engage the bar A and hold the door C on which the bar ismounted in' closed position in its frame" D. The

of a detail member A is formed withTa flange 2 on the bar through whichscrews 3are passed to secure the bar on the face ofpthe door. The

,spring B is in the form of a single piece or k "strip of springmaterial bent outwardlyand and out curved spring shoulder 4 over which,

upwardly between its ends to forman up the bar passes intoengagementduring the act of closing the door. The shouldert produces adown curved cup portion 5 into which the bolt is received, the shoulder4 tending to prevent the bolt from disengag ing; The ends'of the springB are secured to the frame D of'the door suchas by means of screws 6.The door 0 is shown hung upon spring hinges 7 ,which tend to'close thedoor in the frame, the springs in the hinges being of sufficientstrength to carry the bolt over the shoulder on the latch, spring.WVhile the bolt is passing over the Ghpies 01' this patent may beobtained for five cents each, by addressing the Commissioner Patents,

shoulder "4;, the latch spring lifts the door sufiiciently In accordancewith the patentst'atutes I have 'describedthe principles of operation ofmy invention together with the apparatus which I- now consider torepresent the best embodiment thereof but I desire to have [itunderstood that the construction shown is only illustrative and thattheinvention can be carried out by other means and-applied to. uses otherthanth'ose above the scope of the following Specification of Lettersljatenti Patented NOV, 3,1914, U I Application filed .Tune2,19 1 2.Serial No. 705,197.

I to registerit accurately" in the door frame.

framein which said door is hinged to close,

a latch bar secured to said door and .pro

jecting laterally from its free end, and an engagmgmember on'said doorframe with which said bar is adapt'ed to engageto hold the'door closed,said engaging membergconsisting of a single strip ofspring materialsecured by its outwardly projecting ends to the door frame and bentupwardly andout wardlv between its ends to form a large curved bowfoneof which is turned in and down to produce a resilient shoulder overwhich said bar is adapted to' nove during the opening and closing ofsaid door, and an indenture-at the'terminusof saidflin and down turnedportion adjacent, to the door frame which forms an engagement by saidengaging member with said bar to hold said *In testimony whereof, I have'two subscribing witnesses.

] Witnessesi WV. J. COURTNEY, -C. N. MI LER.

Washington, D. Q."

, Signed y 'nameto this specification, 1n the presence of .door inclosed position and said spring shoulder being adapted to lift the doordureing its closing movement to cause the same to register accuratelywiththe opening in "the door frame.

